# Area

Browse 50 area-related tools in your browser. Processing runs on Elysia Tools servers; text inputs are not stored and uploaded files are deleted after 6 hours.

> Canonical page: https://elysiatools.com/en/tags/area

## Overview

Explore 50 browser-based tools for area-related formats and operations, with no software installation required.

## Frequently asked questions

### What can I do with Area tools?

Area tools provide browser-based utilities for working with area-related formats and operations. Available functions vary by tool.

### Do I need to install software?

No. You can access and use these tools through the browser interface.

### How is my data handled?

Requests from the browser are processed on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

## Tools

- [Acre to Hectare](https://elysiatools.com/en/tools/acre-to-hectare): Convert acres to hectares with configurable decimal precision
- [Acre to Square Feet](https://elysiatools.com/en/tools/acre-to-square-feet): Convert acres to square feet with configurable decimal precision
- [Acre to Square Meter](https://elysiatools.com/en/tools/acre-to-square-meter): Convert acres to square meters with configurable decimal precision
- [Area Calculator Map](https://elysiatools.com/en/tools/area-calculator-map): Calculate area and perimeter from GPS coordinates on a map
- [Area Chart Generator](https://elysiatools.com/en/tools/area-chart-generator): Generate customizable area charts from data with filled areas under lines, perfect for showing trends and cumulative data
- [Area Unit Converter](https://elysiatools.com/en/tools/area-converter): Convert between different area units (square meters, square feet, acres, hectares, etc.)
- [Cooling Load Calculator (Area / U-value + Infiltration)](https://elysiatools.com/en/tools/cooling-load-calculator): Estimate the cooling load of a room by the simplified ASHRAE steady-state method. Transmission sensible load Q_trans = Σ(A_i·U_i·ΔT) over envelope surfaces entered one per line as 'area,U' (U in W/(m²·K)). Infiltration/ventilation sensible Q_s = 1.23·ACH·V·ΔT and latent Q_l = 3010·ACH·V·ΔW (W), where ΔW is the indoor-outdoor humidity-ratio difference derived from dry-bulb temperature and relative humidity via the Magnus saturation fit. Total cooling load = total sensible + total latent. Temperature in °C/K/°F (only differences matter), area in m²/ft².
- [Cross Product Calculator](https://elysiatools.com/en/tools/cross-product-calculator): Compute the 2D signed area or 3D cross product between two vectors
- [Drag Force Calculator (F_D = ½·ρ·v²·C_D·A)](https://elysiatools.com/en/tools/drag-force-calculator): Compute the drag force on a body in a fluid stream: F_D = ½·ρ·v²·C_D·A (N), where ρ is the fluid density, v the free-stream velocity, C_D the drag coefficient (shape- and Reynolds-dependent), and A the reference (frontal projected) area. A built-in shape library supplies typical high-Re C_D values: sphere 0.47, hemisphere 0.42, long cylinder 0.81, disk/flat plate 1.17, cube 1.05, streamlined airfoil 0.04, long streamlined ellipsoid 0.07, cone 0.50; or choose 'Custom' to enter C_D directly. Optionally, with dynamic viscosity μ and characteristic length L, the Reynolds number Re = ρ·v·L/μ is computed, and the power dissipated by drag P = F_D·v (W). Density in kg/m³/g/cm³, velocity in m/s/km/h, area in m²/cm²/mm², length in m/cm/mm.
- [Duct Size Calculator (Flow Rate × Velocity)](https://elysiatools.com/en/tools/duct-size-calculator): Size a duct cross-section from the air flow rate Q and the design mean velocity v: area A = Q/v. Circular duct diameter D = √(4A/π). Rectangular duct with aspect ratio r = a/b gives b = √(A/r) and a = r·b, plus the ASHRAE equivalent diameter D_eq = 1.30·(a·b)^0.625/(a+b)^0.25. Flow rate in m³/s/m³/h/CFM, velocity in m/s; dimensions reported in mm and inches.
- [Heat Conduction Calculator (Fourier's Law, q=kΔT/d)](https://elysiatools.com/en/tools/heat-conduction-calculator): Compute 1-D steady-state heat conduction through a flat slab (Fourier's law): heat flux q = k·ΔT/d (W/m²), heat flow rate Q = k·A·ΔT/d (W), and thermal resistance R = d/(k·A) (K/W). k is the thermal conductivity (W/(m·K)); ΔT is the temperature difference (K; a °C difference equals a K difference, a °F difference is converted by ×5/9); d the slab thickness; A the cross-section area. ΔT may be negative (indicating reverse heat flow), but k, d and A must be positive. Thickness in m/cm/mm, area in m²/cm².
- [Heat Convection Calculator (Newton's Law, q=hΔT)](https://elysiatools.com/en/tools/heat-convection-calculator): Compute convective heat transfer (Newton's law of cooling): heat flux q = h·ΔT (W/m²), heat flow rate Q = h·A·ΔT (W), and convective thermal resistance R_conv = 1/(h·A) (K/W). h is the convective heat-transfer coefficient (W/(m²·K)); ΔT is the temperature difference between the surface and the fluid (K; a °C difference equals a K difference, a °F difference is converted by ×5/9); A the heat-transfer area. ΔT may be negative (indicating reverse heat flow), but h and A must be positive. Area in m²/cm².
- [Heat Exchanger LMTD Calculator (Log Mean Temperature Difference)](https://elysiatools.com/en/tools/heat-exchanger-lmtd): Compute the Log Mean Temperature Difference (LMTD) of a heat exchanger for parallel or counter flow. Parallel flow: ΔT₁ = T_h,in - T_c,in and ΔT₂ = T_h,out - T_c,out; counter flow: ΔT₁ = T_h,in - T_c,out and ΔT₂ = T_h,out - T_c,in. LMTD = (ΔT₁ - ΔT₂)/ln(ΔT₁/ΔT₂), or ΔT₁ when ΔT₁ = ΔT₂. A non-positive terminal difference (temperature cross) is physically impossible and is rejected. Optionally, with the overall heat transfer coefficient U (W/(m²·K)) and the heat transfer area A (m²), the heat transfer rate Q = U·A·LMTD (W) is returned. Temperatures are used only as differences: Δ°C = ΔK and Δ°F ×5/9 = ΔK; the LMTD is reported in K.
- [Heat Radiation Calculator (Stefan-Boltzmann Law, Q=εσA·T⁴)](https://elysiatools.com/en/tools/heat-radiation-calculator): Compute thermal radiation from a blackbody/grey body (Stefan-Boltzmann law): blackbody emissive power E_b = σ·T⁴ (W/m²), total radiated power Q_rad = ε·σ·A·T⁴ (W); with an optional surrounding temperature T₀ it also computes the net radiative exchange Q_net = ε·σ·A·(T⁴-T₀⁴) (W). σ = 5.670374419e-8 W/(m²·K⁴); ε is the emissivity (0 < ε ≤ 1, blackbody ε=1); T is the ABSOLUTE temperature (K) — °C and °F are first converted to K (this is an absolute temperature, not a difference); A is the radiating area. Area in m²/cm².
- [Heating Load Calculator (Envelope Transmission + Infiltration)](https://elysiatools.com/en/tools/heating-load-calculator): Estimate the heating (heat-loss) load of a room by the simplified steady-state method. Envelope transmission loss Q_trans = Σ(A_i·U_i·ΔT) over surfaces entered one per line as 'area,U' (U in W/(m²·K)). Cold-air infiltration loss Q_inf = 0.018·ACH·V·ΔT (W), where 0.018 W·h/(m³·K) ≈ ρ·c_p/3600. Total load = Q_trans + Q_inf, optionally multiplied by a safety factor (default 1.0). ΔT = indoor - outdoor (heating, >0). Temperature in °C/K/°F (only differences matter), area in m²/ft².
- [Hectare to Acre](https://elysiatools.com/en/tools/hectare-to-acre): Convert hectares to acres with configurable decimal precision
- [Hectare to Square Meter](https://elysiatools.com/en/tools/hectare-to-square-meter): Convert hectares to square meters with configurable decimal precision
- [Image Extract Region](https://elysiatools.com/en/tools/image-extract-region): Extract a specific rectangular region from an image by specifying area dimensions and position
- [Moment of Inertia Calculator](https://elysiatools.com/en/tools/moment-of-inertia-calculator): Calculate the second moment of area (I) and section modulus (Z) for common cross-sections: solid circle, rectangle, hollow tube, and I-beam. Results in mm⁴ and cm⁴.
- [Mulch Gravel Soil Bulk Bag Estimator](https://elysiatools.com/en/tools/mulch-gravel-soil-bulk-bag-estimator): Estimate how much mulch, gravel, topsoil, river rock, sand or compost a landscaping job needs. Enter the area shape (rectangle, circle, triangle or tapered bed/border), dimensions and depth, then pick a material from the built-in density table (or a custom density). The estimator returns volume (m³ / liters / yd³ / ft³), weight (kg / lb / tonnes), the count of 1 m³ or 1 yd³ bulk bags, small retail bag count, optional cost, plus depth and allowance warnings. Metric and imperial units supported.
- [Orifice Flow Calculator (Bernoulli, Q=Cd·A·√(2ΔP/ρ))](https://elysiatools.com/en/tools/orifice-flow-calculator): Compute the flow rate through a thin-plate orifice for an incompressible fluid (ISO 5167 Bernoulli form with discharge coefficient C_d). Orifice area A=π·d²/4; volumetric flow Q=C_d·A·√(2·ΔP/ρ); mass flow ṁ=C_d·A·√(2·ρ·ΔP); throat velocity v_orifice=C_d·√(2·ΔP/ρ). If the upstream pipe diameter D is supplied the diameter ratio β=d/D is also returned. ΔP≥0, ρ>0, C_d in 0..1 (default 0.61 for a sharp-edged plate). Diameter in m/cm/mm, pressure in Pa/kPa/bar/atm/psi, density in kg/m³/g/cm³; volumetric flow reported in m³/s, L/s, L/min and m³/h.
- [Overall Heat Transfer Coefficient (1/U=ΣR)](https://elysiatools.com/en/tools/overall-heat-transfer-coefficient): Compute the overall heat transfer coefficient for series thermal resistances (flat-wall model): total resistance R_total = Σ R_i (K/W), thermal conductance G = 1/R_total (W/K), area-based coefficient U = 1/(R_total·A) (W/(m²·K)), and if a temperature difference is given the heat flow rate Q = ΔT/R_total (W). Each R_i is a layer resistance already containing the area factor (e.g. convection R_conv=1/(h·A), conduction R_cond=d/(k·A), fouling R_foul=R_f''/A). Enter one resistance (K/W) per line, at least one, all positive. ΔT may be negative (reverse heat flow); a °C difference equals a K difference, a °F difference is converted by ×5/9.
- [Percentile to Z-Score Calculator](https://elysiatools.com/en/tools/percentile-to-z-score-calculator): Convert a normal percentile, tail area, or central area into a standard normal z-score
- [Polar Area Chart Generator](https://elysiatools.com/en/tools/polar-area-chart): Generate interactive polar area charts to visualize data in circular format, perfect for comparing categories with cyclical patterns or radial distributions

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